Transaction not yet indexed

1256fUidAdAKv6mxoBAYThDHWw5yBmLQe4KWzWWbuZyAWVkK5ss3byNJMSch5VUuBHcihx5DhMqvMu59UuX1vMtU

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.